Fuel-saver



w. e. GI LLESPIE. FUEL SAVER.

APPLICATION FILED JAN-20. l9l9.

Patented Sept. 21

. lowing; is a specification.

- WILLIAM GJGILLESPIE, or climatic/rumors.

FUEL-SAVER.

T all whom it may concern:

Be it known that I, WILLIAM G. GILLES- rrn, residing in the cityofChicago, county of Cook, and State of Illinois, haveinvented a new anduseful Oxygenizing Device Known as a Fuel-Saver, of which the fol- Myinvention relates to improvements in oxygenizing devices, and morespecifically to the class of oxygenizing devices in which pre-heated airis drawn through a drum,

on the outside ofa smoke-pipe, into the smoke-pipe anddown into thefire-pot of a heater, stove, or furnace, with which the smokepipecommunicates, and in which the pro-heated air mixes with the volatilegases andrenders-the same combustible. V

,The object or purposeof this device is to provide an' improved meansfor supplying pre-heated air into the smoke-pipe and thence into thefire-pot, so that the temperature of the oxygen will be raised before itcomes into contact with the carbon monoxid and hydro-carbon gasesarising from the fuel-land entering the smoke-pipe, thereby acceleratingthe oxygenation of the ases; and at the same time to check the draftwithout detrimentally retarding the combustion. I attain the foregoingresults by means of the mechanism illustrated in the accompanyingdrawings in which: 2 l

Figure 1 is a vertical sectional view substantially along the lines 1-1of'Figs. 2

. and 3.

Fig. 2 is a vertical-sectional view, substantially along the lines 2-2of Figs. 1 and 2; I, I

' Fig. 3 is a top plan view. 5

,Fig. 1 is a horizontc l sectional view substantiallyalongthe line 44 ofFig. 1.

Referring to these drawings in detail, in which similar referencecharacters correspond with similar; parts throughout the several views,the numeral 1 represents-an inner tube orsmoke-pipe on which is fasteneda drum 4!, this drum being divided into upper and lower compartments orchambers 5 and 6 by a pair of partition plates 7 which are fastened tothe inner side of the drum by means of rivets extending 7 Specificationof Letters Patent.

Patented Sept. 21, 11920.

Application filed January 20, 1919. Serial No. 272,127.

tween the ends of the arcuate' partitionplates 7 there are provided twovents or air-passages'8 through which the upper'and lower chambers orcompartments communicate with one another. In the low-er chamber 6 is anopening or inlet 3 in which is inserted an outwardly flaring funnel 2.

Two vents or ports 9 are provided in the inner tube or smoke-pipediametrically opposite each other and establish an open communication oftheupper part of the upper chamber 5 with the interior of the smokepipe.7 I

. Two baffle-plates 12 and 13 respectively are pivotally mounted in thesmoke-pipe in superjacent relation to one another and to the drum 4L andports 9, the baffle-plate 12 having its pivotal axes located at one sideof the vertical center of the inner tube, and

the baflie plate 13-havingits pivotal axes at the. other side of thevertical center of the smoke-pipe or inner tube so that each baffleplatewhen in its effective position, is 'inclined at an angle of about 30degrees'to the horizontal. The tops of the ba'lile-plates are preventedfrom passing beyond the vertical center of the inner tube or'smoke-pipeby means of stops 14 which are fastened to the inner surface ofthesmokepipe. It should be understood that each of thebaflie-plates isadapted to be turned from the inclined effective position to thevertical ineffective position by means of a handle on the end ofthepivot or shaft16 which supports it,

such handles being designated by the letter h. f

' When the baffle-plates arein their effec-- tive or inclined position,the inner edge of caping through the smoke-pipe. By means of this Icircuitous passage, the products of combustion are retarded, so thatthey will not create a suflicient upward draft to cause the preheatedair from the drum to pass upward. The application and operation of thedevice is as follows:

The complete device is placed on the' heater, stove or furnace in thesame manner in which any ordinary smoke-pipe'isi attached, the drum endof the device being adjacent to the fire-pot, and constituting the lowerpart of the device. The function of the device is performed while thedampers are set in the inclined position, by checking or retarding thedraft without entirely shutting off the draft. The temperature below thebaffle-plates in the s1noke-pipe and firepot, rapidly increases andlightens the products of combustion to such extent that the cold airfrom the outside presses this lighter fluid or smoke upward so that itpasses through the circuitous passage and out of the smoke-pipe.However, the pre-heated air which passes through the ports 9 into thesmoke-pipe is somewhat cooler and heavier than the smoke, and therefore,it gravitates along the inner surface of the smoke-pipe until it entersthe fire-pot or mixes with the carbon gases arising from the fire-pot.Although the air from the ports 9 is sufficiently cool and heavy toeffect its downward movement of air in the smokepipe, it is alsosufliciently warm to enable the oxygen to readily combine with the carbon gases.

it should be understood that when the baffle-plates are turned parallelwith the vertical center, they are ineffective, and permit the draft tohave its maximum strength and velocity, so that the fire may be startedwith the utmost facility, or without being checked or hindered by thebaffle-plates. However, these plates may be very quickly and easilyturned to their effective position after the fire has been started.

I am aware that there have been other devices that heat the air by meansof a casing around the smoke-pipe, in which the air is drawn through thespace in the outer casing and the smoke-pipe, and therefore, I do notclaim this method of heating the air broadly, but what I claim is:

1. A device of the character described, a smoke-pipe having ports in itswall, a drum surrounding said smoke-pipe and having arcuate partitionplates extending substantially in the same horizontal plane and spacedfrom one another to provide air passages from the lower compartment ofthe drum to the upper compartment thereof, said lower compartment beingprovided with an air inlet which communicates with the outer air, saidports being in open communication with the interiors of said uppercompartment and smoke-pipe, and arranged on an axial plane thatintersects at right angles the plane in which the said air passages arearranged.

2. in a device of the character described, a smoke pipe having ports inits walls, a drum surrounding said smoke pipe and having horizontallydisposed partition dividing the drum into upper and lower compartmentsand cut to provide air passages from the lower compartment of the drumto the upper compartment thereof, the lower compartment being providedwith an air inlet opening, and said ports being in open communicationwith the interior of the smoke pipe and the upper compartment of thedrum and arranged on an axial plane intersecting atright anglesthe-plane in which the air passages of the ports are arranged.

3. In a device of the character described, a smoke-pipe having ports inits walls, a drum surrounding said smoke-pipeand comprising a lowercompartment and an upper compartment and being provided with airpassages through which these compartments communicate with one another,the lower compartment being provided with an airinlet which communicateswith the outer air, said upper compartment communicating with theinterior of said smoke-pipe through said ports, and baffle-plates spacedone above the other in said smoke-pipe and at a higher level than saidports, said bafHe-platesbeing located respectively nearer to one side ofthe smoke-pipe than to'the other side, the'upper one of thesebafileplates having its inner edge extending over the inner edge of thelower one of these halide-plates, thereby providing a circuitous passagepast these battle-plates.

l. In a device of the character described, a smoke pipe having ports inits walls, a drum surrounding said smoke pipe and provided with an airinlet, the upper portion of the drum communicating with the interior ofthe smoke pipe through said ports, and battle-plates spaced one abovethe other in said smoke pipe and at a higher level than the ports, saidbaffle-plates being located respectively nearer one side of the smokepipe than to the other side and the upper one of the bail'le-plateshaving its inner edge extending over the inner edge of the lower one, W

thereby providing a circuitous passage past the battle-plates. V

WILLIAM Gr GILLESPIE.

